RF Solution公司的 GPS-41SMD是快速采集有增强灵敏度的16路嵌入式GPS接收器模块,具有高性能,容易使用,灵活性和低成本等特点,适合导航和跟踪应用. GPS-41SMD有6路GPS接收器和4100+相关器,支持SBAS (WAAS, EGNOS)与有源和无源天线, 采集灵敏度-140dBm,跟踪灵敏度-155dBm,定位精度5米,低功耗(小于100mW).本文介绍了GPS-41SMD的主要特性,方框图以及采用有源和无源天线的应用电路图.
The GPS-41SMD is a miniature 16-channel OEM GPS receiver module. It is optimized for high-performance, ease-of-use, flexibility, and low-cost. The GPS receiver is suitable for a wide range of navigation and tracking applications.
16 parallel channels and 4100+ correlators provide fast satellite signal acquisition and short start-up time. Acquisition sensitivity of–140dBm and tracking sensitivity of –155dBm offers good performance even under difficult environments.
The GPS-41SMD provides one 3.3V UART serial I/O and one GPIO pins. Self-contained LNA supports direct connection to passive or active antenna.
Sub-100mW power consumption makes the GPS-41SMD ideal for battery-operated portable devices. Satellite-based augmentation systems, such as WAAS and EGNOS, are supported to yield improved accuracy.
Small size and SMD mounting allow standard SMT assembly process, making it ideal for high volume production.
图1.GPS-41SMD外形图
GPS-41SMD 主要特性:
_ 16 parallel channel GPS receiver
_ 4100+ correlators
_ SBAS (WAAS, EGNOS) support
_ Supports active and passive antenna
_ High Sensitivity:
_ -140dBm acquisition sensitivity
_ -155dBm tracking sensitivity
_ Fast Acquisition:
_ < 5 second hot start
_ < 50 second cold start
_ 5m CEP accuracy
_ Low Power Consumption, < 100mW
_ Small Size, 22.4 x 17.0 x 3.3 mm
GPS-41SMD技术指标:
图2.GPS-41SMD方框图
图3.GPS-41SMD有源天线应用电路
图4.GPS-41SMD片状天线应用电路
